Schema Verification

SMS Webhook Payload Validator

Validate incoming SMS webhook payloads against Twilio, Telnyx, and Plivo API specifications. Test parameter requirements, detect missing fields, and normalize telecom attributes.

Supported Telecom Inbound Payload Standards

Twilio Messaging API

Enforces standard form-urlencoded or JSON parameters including MessageSid, From, To, Body, and AccountSid.

Telnyx v2 Webhooks

Transmits structured event envelopes with data.event_type = message.received, carrying payload.id, payload.from, and payload.text.

Plivo Inbound SMS

Delivers MessageUUID, From, To, and Text keys with support for Unicode encoding flags and multipart concatenation identifiers.